linux-kernel - Re: s390 qemu boot failure in -next

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Message-Id: <8617698e-0d1a-15d8-7e6d-e63408857b1c@de.ibm.com>
Date:   Tue, 26 Jun 2018 10:54:41 +0200
From:   Christian Borntraeger <borntraeger@...ibm.com>
To:     Cornelia Huck <cohuck@...hat.com>
Cc:     Guenter Roeck <linux@...ck-us.net>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org,
        qemu-s390x <qemu-s390x@...gnu.org>,
        qemu-devel <qemu-devel@...gnu.org>,
        Thomas Huth <thuth@...hat.com>
Subject: Re: s390 qemu boot failure in -next



On 06/26/2018 10:29 AM, Cornelia Huck wrote:
[...]
>>>>  
>>>>          if (ipl->initrd) {
>>>>              ram_addr_t initrd_offset;
>>>>
>>>> would put the command line in no matter what the start address is.  
>>>
>>> I'm for putting that one in (and backporting it to qemu-stable). It's a
>>> bit worrying, though, that our ipl code is so fragile...  
>>
>> We actually have to combine this with Thomas fix (to check for rom_ptr returning
>> something sane). It seems that ipl->commandline is always there, so we have to
>> check for strlen!=0 it seems..
>>
>> I mean if somebody ask for "-append something" we can certainly always write something
>> if there is rom/ram.
> 
> Given that the uncompressed image is not supposed to be bootable
> anymore, does it make sense to add this anyway?

I think we can drop this patch for now.

> 
> I'll go ahead and queue Thomas' fix, though.

yes, please